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av:japanese_rgb-15

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Japanese RGB-15 Connector

This connector is the standard for many pre-DOS/V (IBM compatible) computers in Japan. The PC-9801, X68000 and FM Towns all used this pinout, or similar variants of it. Pay attention to the differences, they are important!

X68000

PinFunctionPinFunction
1 Red 9 NC
2 Ground 10 Audio L
3 Green 11 Audio R
4 Ground 12 Ground
5 Blue 13 NC
6 Ground 14 H-Sync
7 Ys 15 V-Sync
8 Ground
  • Ys = computer data present. Usually +5V

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PinFunctionPinFunction
1 Red 9 Ys

/ F

4 Ground 12 Ground
5 Blue 13 Dot Clock
6 Ground 14 H-Sync
7 Ys 15 V-Sync
8 Ground
  • Ys = computer data present. Usually +5V

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FM Towns

PinFunctionPinFunction
1 Red 9 Ys
2 Ground 10 AV Control
3 Green 11 Mode
4 Ground 12 Ground
5 Blue 13 Dot Clock
6 Ground 14 H-Sync
7 C-Sync 15 V-Sync
8 Ground
  • Note that some FMTowns systems used a VGA connector.
  • Ys = computer data present. Usually +5V

CAVEATS

  • Not all systems put out power on pin 7. Normally +5v, some devices (like the X-RGB2) leave this pin disconnected. You can add power to your cables, for monitors that require it, following these directions.
  • Remember that the pin numbers are almost always found on the connector itself.

Credit:

av/japanese_rgb-15.1217106989.txt.gz · Last modified: 2019/08/27 20:44 (external edit)